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anaesthetic

British

/ ˌænɪsˈθɛtɪk /

noun

a substance that causes anaesthesia

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

adjective

causing or characterized by anaesthesia

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Ketamine, a surgical anaesthetic, is used as a treatment for depression, anxiety and pain.

From BBC • Dec. 16, 2025

Risks for those with higher BMIs are related to anaesthetic effectiveness as well as wound healing, blood clots and infections.

From BBC • Dec. 5, 2025

While giving evidence, Dr Patrick Morgan, a consultant in anaesthetic and pre-hospital care, said witness accounts suggested the five-year-old got into difficulty in the swimming pool at around 08:41.

From BBC • Oct. 14, 2025

For the duration of the procedure the client is wide awake, having had low levels of local anaesthetic injected into the skin and the deeper tissue beneath.

From BBC • Oct. 10, 2025

That was in 1924, and taking out a child’s adenoids, and often the tonsils as well, without any anaesthetic was common practice in those days.

From "Boy: Tales of a Childhood" by Roald Dahl

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023